| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high pressure fuel supply means which reduces concentration of stress to an accumulation container without increasing the number of parts nor causing the residue of foreign substances, thereby improving the pressure resistance of the accumulation container. <P>SOLUTION: A plated section 41 is formed on an inner wall 10a of the accumulation container 10 having an accumulation chamber 13 and a fuel passage 14 formed therein and on a chamfer portion 15 formed at a connecting portion between the accumulation chamber 13 and the fuel passage 14. The chamfer portion 15 is smoothed by the plated section 41 so as to reduce the concentration of stress. At the same time, the foreign substances sticking to the inner wall 10a of the accumulation container is covered with the plated section 41, so that it becomes unnecessary to grind the chamfer portion 15 and to wash the interior of the accumulation container 10. A non-plated section 42 where a plated section is not formed and the inner wall of the accumulation container 10 is exposed is formed on an attachment portion 31 to which a fuel pipe is attached and a seal portion 32 in contact with the fuel pipe in a liquid-tight state. Therefore, it is possible to prevent invasion of plating wastes into the seal portion 32 and reduction of the sealability due to deformation of the seal portion 32. <P>COPYRIGHT: (C)2004,JPO |
